Henry maechbtbe



(No Model.)

-H. MARGHETER.

SELF ACTING SAFETY GATE FOR SWING BRIDGES. No. 352,251 Patented Nov. 9,1886.

N. PETERS. Phnlmlflhngnphsr, Wnlhinghrg D. C.

' Umrnn STATES" PATENT OFFICE.

HENRY MAROHETER, or WALLAOEBURG, ONTARIO, CANADA.

SELF-ACTING SAFETY-GATE FOR SWING-BRIDGES.

SPECIFICATION forming part of Letters Patent No. 352,251, dated November9, 1886.

v Application filed February18, 1886. Serial No.'192,372. (No model.)

To all whom it may concern:

Be it known that I, HENRY MAROHETER, a suloject of Her Majesty QueenVictoria, and a resident of Wallaeeburg, countyof Kent, and Province ofOntario, Dominion of Canada, have invented new and useful Improvementsin Safety-Gates for Bridges, of which the following is a specification.

-My invention relates to improvements in gates for swing-bridges usingweights to pull up the gate, and a lever acted upon by the swing part ofthe bridgeto force the gate down out" of the way. I attain these objectsby the mechanism illustrated in the accompanying drawings, in whichFigure'l is a side view of the approach, showing the gate up in place,the swing part being away at this time. Fig. 2 is a similar view, butshows the gate lowered and out of the way as the swing is returned andrests on the lever, thereby lowering the gate. Fig. 3

, shows the iron bearer attached central and u nderneath and at the endof the swing, and is so adjusted that it will ride upon the end of thelever that projects beyond the end of the approach, and gradually pullsthe gate down until at last it rests its maximum bearing andcontinuously holds thegate down.

.Similarletters refer to similar parts th roughout the several views.

A is the approach.

B Bin the drawings show the uprights ofthe gate now up in place with F,which is a rod of iron or wood, and forms the top of the gate. The gatecan be made of any material or shape most desirable.

O is the weight, I grooved wheel, and D the chain.

E is a sheath to keep the end of the lever in place.

G is the lever, and H the the united levers G. t

I is the grooved wheels for chains to run in.

J is the fulcrum, and K in Fig. 2 shows the swing end of the bridgeresting on the projecting lever-head H.

L in Fig. 3 is a part of the timber of the projecting end of swing, onthe extreme end of which the beareriron Mis attached, (shown in Fig, 3,)theiron bearing M just sliding onto the lever-head,

ous movement of the gate.

In .putting up a gate on an approach made with open timber the machinerycan all be put inside the same, duplicating the weights, wheels, andchains, as in solid abutments, to hold up the gate, and put anywherebest to op.-

erate on the gate; and the device for putting down the gate byleverpower can be the same as in solid abutments;or, if desirable, onecentral lever of sufficient strength may be used, and also, if the gatecan, according to circumstances, be set well back, a single leverandonly one wheel can be used. In this arrangement the end of the leverthrough the chain acts directly on the gate in pulling it down; but inall cases the end of the lever mustforrn the projecting head H, in orderthat when the swing comes to the iron bearer will ride on the top of thehead H and pull the gate down.

Having thus described the different parts and their relations to eachother, I will give a general idea of my invention.

, It will be seen that to have a gate self actingby the weights soarranged as is seen in speeifi-I cation and description given. Thesecond thing to be attained is the getting the gate out of the way whenthe swing comes to place, so that it is not an obstruction to travel.Advantage is taken of the swinging of the bridge, giving a free powerand use for pulling the gate down just at the right time; and when thegate must be removed as the swing is coming to place, the iron bearer Mstrikes the lever-head H, the lever being pressed downward by thecontact,

2. The combination,with the rising and falling gate, of the chains D,passing oppositely from the lower part of the said gate over the t5sheaves I, arranged substantially as described, and at their endsconnected respectively to the weight 0 and lever G, substantially as andfor the purpose set forth.

HENRY llIARGHETER.

the other end of the lever flies up, and as the I Witnesses:

HENRY MARTIN, W. D. JOHNSON.

